214326domain: NAppears in sequencesa(n) = (n+1)*(n+2)*(n+3)*(n+4)*(n+15)*3^n/360.at n=6A080423Number of length n+5 0..1 arrays with at most two downsteps in every n consecutive neighbor pairs.at n=23A256820Numbers of multiplicative persistence 4 which are themselves the product of digits of a number.at n=30A350183